Extending HashiCorp Nomad with Plugins
0 likes1,348 views
HashiCorp Nomad is a workload orchestrator capable of running on various platforms like Linux, Windows, and macOS, supporting both Dockerized and legacy applications. It utilizes an architecture that allows extensibility through task driver and device plugins, facilitating the scheduling of workloads across diverse hardware infrastructures. The document also highlights a growing ecosystem of plugins and indicates that future versions will enhance extensibility via these plugins.
![Device Plugin Interface
CODE EDITOR
type DevicePlugin interface {
Fingerprint(ctx context.Context) (<-chan *FingerprintResponse, error)
Reserve(deviceIDs []string) (*ContainerReservation, error)
Stats(ctx context.Context, int time.Duration) (<-chan *StatsResponse, error)
}](https://image.slidesharecdn.com/hashitalks2020slides-200221214842/85/Extending-HashiCorp-Nomad-with-Plugins-10-320.jpg)
Extending HashiCorp Nomad with Plugins
- 1. Copyright © 2020 HashiCorp
- 2. HashiCorp Nomad ● Workload orchestrator: maps workload to compute resources. ● Designed to run any workload on any platform. ● Runs on Linux, Windows, or macOS. ● Runs Dockerized or legacy applications. ● Extensible runtimes via task driver plugins. ● Extensible hardware support using device plugins.
- 3. Demo
- 4. Chris Baker, PhD Senior Engineer, Nomad Ecosystem Team he/him
- 5. Demo Nomad Plugin Architecture Example Plugins Outline
- 6. Nomad Cluster Architecture SERVER follower SERVER follower CLIENT SERVER leader replication forwarding replication forwarding CLIENT CLIENT plugins allocations Operator job specification resources CLIENT CLIENT CLIENT plugins allocationsresources CLIENT CLIENT CLIENT plugins allocationsresources
- 7. Nomad Plugin Architecture > nomad agent -plugin-dir=plugins …
- 10. Device Plugin Interface CODE EDITOR type DevicePlugin interface { Fingerprint(ctx context.Context) (<-chan *FingerprintResponse, error) Reserve(deviceIDs []string) (*ContainerReservation, error) Stats(ctx context.Context, int time.Duration) (<-chan *StatsResponse, error) }
- 11. Nomad Task Driver Plugins
- 12. Driver Plugin Interface CODE EDITOR type DriverPlugin interface { StartTask(*TaskConfig) (*TaskHandle, *DriverNetwork, error) RecoverTask(*TaskHandle) error WaitTask(...) (<-chan *ExitResult, error) StopTask(...) error DestroyTask(...) error SignalTask(taskID string, signal string) error ExecTask(...) (*ExecTaskResult, error) }
- 14. Extensibility through Plugins Support for scheduling any workload against any hardware infrastructure. Growing Ecosystem of Plugins Numerous internal and external plugins to use as examples. Future Plugin Systems Future versions of Nomad will use plugins for further extensibility. Conclusion